No Budget Limit Power Upgrades

nicholastanguma · Feb 15, 2012

Hey guys, noob here with his first post.

Lately I've been slowly letting myself fall in love with the TW200, to the point where I'm thinking of making a no budget limitations project out of a brand new TW. So just wargame with me a moment: no whining about irrational costs, the need for machine shop work, shipping prices from overseas, trying to make the bike what it was never meant to be, etc.

Here's someone offering to spend irrationally large amounts of his own money as a sort of TWforum experiment that can benefit and entertain everybody.

Searching through TWforum, Webike Japan, and TW-parts I see all sorts of camshafts, carburetors, high compression pistons, and big bore kits. However, the foreign sites often don't translate directly into English where technical specs are concerned, so I often can't really tell what the products offer and what their installation requires.

So the question is simple, really: Where should I be buy the most installation-friendly (bolt-on or application specific) big bore kit, camshaft, and carburetor kit? Also, all related parts and pieces like heavy duty clutches and so forth. Website links if possible, please!

With this info I can start a sort of forum-wide "reliable horsepower dream project."

SCARE! · Feb 15, 2012

i'd say do some reading and learn what makes a bike faster for a start..

lizrdbrth · Feb 15, 2012

This has been done to death. Search til your eyes cross. I'm a little confused because you claim an unlimited budget, so maybe a little more familiarization with the motor in its 200cc configuration is in order. You can't get very far with strictly bolt-ons, but here goes.

Assuming you're in the U.S.:

No meaningful "bolt-on" big bore kit exists because the TW case mouths are too small. You can get your existing cylinder bored and buy Wiseco pistons but you won't get very far with the TW jugs. If you're willing to enlarge the case mouth to accept 225 cylinders there are Wiseco pistons up tp 72mm in a couple of compressions. We're already out of the realm of bolt-on.

Webcam offers 3 grinds and matching springs. Spend away. The TW has tiny valves so close together that bigger valves are out of the question. Your only option is to hold them open longer. The heads don't respond greatly to porting, but If done right it at least does no harm.

The stock carb can handle anything you can build with the stock jugs. The bigger Mikuni from the TTR225 will handle everything else.

Once you convert to 225 parts the world changes significantly. Longer stroke and bigger bore, but it's far from a bolt-on.

rm_hm · Feb 15, 2012

Damn double post

And lizrdbrth beat me to post while I was still typing

rm_hm · Feb 15, 2012

RisingSun · Feb 15, 2012

nicholastanguma said:
Hey guys, noob here with his first post.

Lately I've been slowly letting myself fall in love with the TW200, to the point where I'm thinking of making a no budget limitations project out of a brand new TW. So just wargame with me a moment: no whining about irrational costs, the need for machine shop work, shipping prices from overseas, trying to make the bike what it was never meant to be, etc.

Here's someone offering to spend irrationally large amounts of his own money as a sort of TWforum experiment that can benefit and entertain everybody.

Searching through TWforum, Webike Japan, and TW-parts I see all sorts of camshafts, carburetors, high compression pistons, and big bore kits. However, the foreign sights often don't translate directly into English where technical specs are concerned, so I often can't really tell what the products offer and what their installation requires.

So the question is simple, really: Where should I be buy the most installation-friendly (bolt-on and application specific) big bore kit, camshaft, and carburetor kit? Also, all related parts and pieces like heavy duty clutches and so forth. Website links if possible, please!

With this info I can start a sort of forum-wide "reliable horsepower dream project."

Well like they said get a TW 225 engine from Japan or a newer SR500 I think they even might have a fuel injection on in Japan.

SCARE! · Feb 15, 2012

rm_hm · Feb 15, 2012

You asked for it.

http://www.ebay.com/itm/Yamaha-TW20...0010&pt=Motorcycles_Parts_Accessories&vxp=mtr

Yamaha TW200 TW 200 Mini Nitrous Kit w/5 NOS Refills

Please Read

You will want to add extra fuel to the system as the nitrous will create more oxygen and cause the mixture to run on the lean side. This kit could cause long term engine damage if not installed or used correctly.

Nitrous will not crack engine blocks or pistons if installed according to the directions.

This kit is Powerful and should not be used by inexperienced riders. Any rider could get hurt using this kit if they are not careful.

Always wear an approved helmet when riding.

We do not accept any liability from the use or misuse of this kit.

We can not supervise you when you use this kit so please use your best judgment and wear the proper safety gear.

phelonius · Feb 15, 2012

Dare I say it? Start with an XTW250 and go from there.

TeeDubs · Feb 15, 2012

Give me your money and I'll spend it for you

Thomas K · Feb 15, 2012

Dream big

http://www.yamaha-motor.com/sport/products/modelhome/651/0/home.aspx

nicholastanguma · Feb 15, 2012

To those of you that were actually helpful: thanks for the help, doods.

I was disappointed to hear that a port and polish of the head won't do much for a TW. It seems to me the most installation-friendly application specific options are a high compression piston, high lift cam, and perhaps a flat slide carby for some kick-butt throttle response. Exhaust options are plentiful from Japan, of course, but for trail riding I think need to stick with something high mount. Anyone know if TW-parts can still get the Akrapovic full system?

Malkop · Feb 15, 2012

A limited budget makes one more creative and a more useful forum contributer. Operose sorting his cdi is a prime example. I wanted my TW to be a bit faster but still be a light dual sport so I bought a rusted but mechanically sound 1988 Honda XL250R with the RFVC motor and dual carbs for =$500. I had fun stripping and painting it and keeping it all stock. It goes like a rocket and scares women and children who are too fond of my TDub. I appreciate your economical irrationality )got some myself), but it seems a waste to tear down a new bike when there are so many of us here and around the world who have never had any bike out the box and probably never will. So don't expect many cheerleaders for your project.

rvtjonny · Feb 16, 2012

Turbo.....<----link

RisingSun · Feb 16, 2012

rvtjonny said:
Turbo.....

Gee I wonder where you got that picture from? besides you choose the wrong side you can't see the picture of the turbo on this side

rvtjonny · Feb 16, 2012

RisingSun said:
Gee I wonder where you got that picture from? besides you choose the wrong side you can't see the picture of the turbo on this side

Ok, so whats your point? Its linked to where I got it from (Here)? and I liked that pic...

RisingSun · Feb 16, 2012

rvtjonny said:
Ok, so whats your point? Its linked to where I got it from (Here)? and I liked that pic...

Its my picture. I guess sarcasm is hard to detect.

rvtjonny · Feb 16, 2012

RisingSun said:
Its my picture. I guess sarcasm is hard to detect.

Oh............

weird, Yamaha forums said it was japan? Sick Bike None the Less..

RisingSun · Feb 16, 2012

Yeah I am from Japan originally and was snooping around Japanese websites to bring something different to this forum. Only Japanese people are crazy enough to dump wads of money into anything just to be original. I have seen Honda 50cc monkeys with over $10,000 dumped into them. They have a proverb in Japanese where it says there is no limit for the passions of your hobbies.

FortPayne · Feb 16, 2012

RisingSun said:
...Only Japanese people are crazy enough to dump wads of money into anything just to be original...

Ha, you need to come visit.

No Budget Limit Power Upgrades

Top Contributors this Month